.banner_bg{
    width: 100%;
    height: 300px;
    background-image: url(../images/Cooperation.jpg);
}
.main{
    width: 1180px;
    height: 860px;
    padding-top:80px;
}
.main_h{
    width: 760px;
    height: 40px;
    margin-left: 210px;
    text-align: center;

}
.main_h .main_h_Coo span{
    width: 120px;
    height: 40px;
    color:#3083E8;
    font-size:30px;
}
.main_h .main_h_exp{
    margin-top: 10px;
}
.main_h .main_h_exp span{
    width: 210px;
    height: 20px;
    color: #808080;
    font-size: 14px;
}
.main_m{
    width: 1180px;
    height: 700px;
    margin-top: 100px;
}
.main_m .main_left{
    float: left;
    width: 517px;
    height: 430px;
}
.main_m .main_left .main_left_h{
    margin-bottom: 40px;
}
.main_m .main_left .main_left_h span{
    width: 70px;
    height: 20px;
    color: #3083EB;
    line-height: 20px;
    font-size: 18px;
}
.main_left .main_left_m {
    width: 450px;
    height: 400px;
    margin-left: 30px;
}
.main_left .main_left_m ol li{
    color: #4c4c4c;
    font-size: 14px;
    line-height: 40px;
}
.main_m .main_right{
    float: right;
    width: 618px;
    height: 795px;
}
.main_right form{
    width: 500px;
    height: 595px;
    margin-left: 50px;
}
.main_right form>div{
    width: 493px;
    height: 75px;
}
.main_right form .bm_h{
    width: 492px;
    height: 27px;
    color: #666666;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 3px;
}
.main_right form .bm_m{
    width: 492px;
    height: 36px;
}
.main_right form .bt{
    float: right;
    width: 10px;
    height: 36px;
    color: red;
    line-height: 36px;
    text-align: center;
}
.main_right form .bm_e{
    width: 492px;
    height: 150px;
}
.main_right form .bm_e .bm_h{
    width: 492px;
    height: 27px;
    color: #666666;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 3px;
}
.main_right form .bm_e .bm_m{
    float: left;
    width: 492px;
    height: 120px;
}
.main_right form .bm_e .bt{
    float: right;
    width: 10px;
    height: 120px;
    color: red;
    line-height: 120px;
    text-align: center; 
}
.main_right form input{
    float: left;
    width: 473px;
    height: 34px;
    color:black;
    border: 1px solid #cccccc;
}
.main_right form textarea{
    width: 473px;
    height: 102px;
    color:black;
    border: 1px solid #cccccc;
}
.main_right form .yanzhengma {
    width: 500px;
    height: 70px;
    color: white;
}
.main_right form .yanzhengma .bm_h{
    width: 492px;
    height: 27px;
    color: #666666;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 3px;
}
.main_right form .yanzhengma .bm_m{
    width: 492px;
    height: 34px;
}
.yanzhengma .bm_m #input {
    float: left;
    width: 131px;
    height: 34px;
    outline: none;
}
.yanzhengma .bm_m #code {
    float: left;
    margin-left: 10px;
    width: 80px;
    height: 34px;
    font-size: 20px;
    font-family: Arial;
    font-style: italic;
    font-weight: bold;
    letter-spacing: 2px;
    color: blue;
    /* border: 1px; */
    background-color: #fff;
}
.yanzhengma .bm_m .bm_f{
    float: left;
    margin-left: 10px;
    width: 10px;
    height: 34px;
    color: red;
    line-height: 34px;
    text-align: center;
}
.main_right form button{
    margin-top: 25px;
    width: 184px;
    height: 44px;
    background:#5AB4FF;
    color: #ffffff;
    font-size: 14px;
    border: 0px solid #5AB4FF;
}
#btnTop {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 30px;
    z-index: 99;
    border: none;
    outline: none;
    background-color: #89cff0;
    color: white;
    cursor: pointer;
    padding: 15px;
    border-radius: 10px;
  }
  #btnTop:hover {
    background-color: #1E90FF;
  }